Tag Archives: homework


Homophones are words that sound the same even though they’re spelt differently and mean different things. Getting them right can be tricky, but it’s worth it in the end.

The reason why homophones are important is not just to do with the general need to spell correctly. Many people think getting them wrong is a ‘worse’ mistake than simply mis-spelling a word because it means that you don’t really know what you’re doing. Anyone can make a spelling mistake, but using completely the wrong word somehow seems a lot worse. That may not sound fair, but that’s just how a lot of people think, so it’s worth learning the common homophones so you don’t get caught out.

Here’s a list of the main ones:

a lot/allotmuch/distribute
ad/addnotice/put together
ads/adds/adzenotices/puts together/type of axe
ail/aletrouble (verb)/beer
air/heiratmospheric gas/inheritor
aisle/isle/I’llcorridor/island/I will
all ready/alreadyeverything set/by a certain time
all together/altogethereveryone in the same place/absolutely
all/awltotally/piercing tool
allowed/aloudpermitted/out loud
alter/altarchange/church table
ant/auntinsect/parent’s sister or brother’s wife
arc/arkpart of circle/Biblical boat
aural/oralto do with hearing/to do with mouths
away/aweighoff/up (eg anchors aweigh)
ay/aye/eye/Iyes/yes/organ of sight/1st person
bail/balescoop water out/jump out
bait/batefood on hook/hold (eg bated breath)
bare/bearnaked/tolerate or grizzly
base/bassfoundation/low note
be/beeexist/flying insect
beach/beechsandy area/type of tree
beau/bowmale admirer/bend down or front
bell/bellemusical instrument/pretty girl
berth/birthsleeping place/arrival of baby
bite/bytenibble/unit of data
blew/blueforced air/colour
bloc/blockgroup of countries/cuboid
boar/borewild pig/boring person
board/boredflat object/weary
bough/bowbranch/bend down or front of ship
boy/buoymale child/floating marker
brake/breakslow down/shatter
breach/breechgap/part of gun
bread/bredfood made with yeast/brought up
bridle/bridalleather strap/to do with brides
broach/broochopen (a question)/piece of jewellery
browse/browslook through/hair above the eyes
but/buttalthough/water tank
buy/by/byepurchase/by means of/goodbye
cache/cashhidden hoard/notes and coins
cannon/canongun/collection of artistic works
canvas/canvasssail fabric/ask questions of
capital/capitolupper case or city/government building
carat/carrot/caret/karatweight/vegetable/arrow/share of gold
cast/castethrown/social class
cede/seedgive up/reproductive unit
ceiling/sealingroof/making watertight
cell/sellpart of body/exchange for money
cellar/sellerbasement/person selling
censor/sensorban (film etc)/measurement device
cent/scent/sentUS penny/perfume/dispatched
cents/scentsUS pennies/perfumes
cereal/serialbreakfast dish/TV show
cession/sessiongiving up/period of course
chased/chastepursued/like a virgin
cheap/cheepinexpensive/bird sound
chilly/chillicold/hot food
choir/quiregroup of singers/unit of paper
chord/cordgroup of notes/string
chute/shootdisposal passage/take shot at goal
coarse/courserough/track or route
colonel/kernelarmy rank/stone in fruit
complement/complimentgo well with/say something nice
coo/coupsound of dove/revolution
core/corpscentre/army unit
council/counselgoverning body/advice
cue/queuesnooker tool/line of people waiting
currant/currentdried fruit/electric flow
cymbal/symbolmusical instrument/icon
dam/damnriver barrier/damnation
days/daze24-hour periods/confuse
dear/deerexpensive/type of mammal
defused/diffusedmade safe/circulated
desert/dessertsandy zone/pudding
dew/do/duewater on grass/finish/owed
die/dyeexpire/colour (verb)
discreet/discretenot talkative/separate
doe/dough/dohfemale dear/unbaked bread/oh, no
draft/draughtpractise writing/on tap (eg beer)
dual/duelin two parts/fight with swords etc
earn/urn/ern or ernemake money/vase/type of bird
ewe/you/yewfemale sheep/2nd person/type of tree
faint/feintlose consciousness/fake attack
faun/fawnrural god/beige or young deer
faze/phase disturb/stage
feat/feetachievement/plural of foot
find/finedseek/told to pay money
fir/furtype of tree/animal hide
flair/flaretalent/bullet making bright light
flea/fleetype of insect/run away
flew/flu/fluepast tense of fly/influenza/chimney
flocks/phloxherds/type of plant
flour/floweringredient for bread/plant
for/four/foreto the benefit of/4/in front
friar/fryer monk/pan
gait/gateway of walking/door outside
gene/jeanDNA unit/trousers
gild/guildcover in gold/organisation
gilt/guiltcovered in gold/having done wrong
gored/gourdholed/fruit or water container
gorilla/guerrillatype of ape/freedom fighter
grease/Greecelubrication/a country
groan/grownmoan/past tense of grow
guessed/guestpast tense of guess/invitee
hair/harestrands growing on head/rabbit
hangar/hangerstorage for aircraft/hook in wardrobe
hay/heydried grass/oy
heal/heel/he’llmake well/back of foot/he will
hear/herelisten/in this place
heard/herdpast tense of hear/group of animals
heed/he’dpay attention to/he would or he had
hertz/hurtsfrequency unit/causes pain
hew/hue/Hughcut/colour/a name
higher/hiremore raised/rent
him/hymna pronoun/religious song
hoard/hordecollection/mass of people
hoarse/horserough (of voices)/an animal
hoes/hosegarden tools/tube
hold/holedkeep or carry/past tense of hole
holey/holy/whollywith holes/sacred/completely
hour/our60 minutes/a pronoun
humorous/humerusfunny/arm bone
idle/idollazy/religious statue
illicit/elicitillegal/draw out
it’s/itsit is/belonging to it
jam/jambfruit spread/door frame
kernel/colonelcore/army rank
knead/kneed/needmix dough/hit with knee/require
knight/nightwarrior/dark time
knit/nitfit together/egg of louse
knot/nottied rope/negative
know/no/Nohbe aware of/negative/type of drama
knows/noseis aware of/facial feature
laid/ladepast tense of lay/load ship
lain/lanepast participle of lay/alley
lay/leiplace/flower necklace
leach/leechleak/blood-sucking worm
lead/ledheavy metal/past tense of lead
leak/leekdrop out/vegetable
leased/leastpast tense of lease/superlative of less
lee/leashadow of wind/meadow
lessen/lessonmake less/teaching session
liar/lyreperson who lies/musical instrument
license/licencepermit (verb)/permission
lie/lyefalsehood/alkali solution
links/lynxconnections/wild cat
load/lodeput into/vein of metal in ground
locks/loxsecures/smoked salmon (American)
loot/lutemoney/musical instrument
made/maidcreated/young woman
main/mane/Mainechief/hair/state in USA
manner/manorway/lord’s house
marshal/martialarmy rank/to do with war
massed/mastbrought together/upright post on ship
maybe/may beperhaps/might be
meat/meet/metetype of food/get together/distribute
metal/mettleshiny material/spirit
might/mitemay/tiny spider
mince/mintsground beef/plural of mint
mind/minedbrain/dug up
miner/minor/mynahdigger/junior/type of bird
missed/mistpast tense of miss/fog
moan/mowngroan/past participle of mow
mode/mowedway/past tense of mow
muscle/musselpart of body/sea creature
mustard/musteredspicy dressing/broughted together
naval/navelto do with the navy/belly button
nay/neighno (dated)/sound of horse
none/nunnot one/female monk
oar/or/oreblade/alternatively/metal source
oh/owe/oah/have a debt of/oh (poetic)
pain/paneache/window panel
pair/pare/pearcouple/shave/type of fruit
palate/palette/palletpart of mouth/artist’s tray/platform
passed/pastpast tense of pass/in the past
patience/patientstolerance/people in hospital
pause/pawsbreak/animal hands and feet
peak/peek/piquesummit/look quickly/annoyance
peal/peelsound of bells/take skin off
pearl/purlprecious stone/knitting stitch
pedal/peddlefoot lever/sell
peer/pierlook carefully/jetty
per/purrfor each/sound of a cat
pi/pie3.14/dish topped with pastry
plain/planeunexciting/2D object
pleas/pleaserequests (noun)/if it pleases you
plum/plumbtype of fruit/measure water depth
pole/pollrod/election or survey
pore/pourconcentrate on/flow
pray/preytalk to God/victim
presence/presentsbeing somewhere/gifts
prince/printsson of monarch/printed photographs
principal/principlemain/rule of conduct
profit/prophetmoney made/religious seer
rack/wrackwire tray/shipwreck
rain/reign/reinwater from clouds/rule/control strap
raise/rays/razelift/plural of ray/destroy
rap/wraphit/pack up (eg a present)
rapped/rapt/wrappedpast tense of rap/spellbound/past tense of wrap
read/redpast tense of read/scarlet
read/reedstudy/type of plant
real/reelgenuine/cylinder for fishing line etc
reek/wreaksmell bad/cause
rest/wrestrelax/wrench away
retch/wretchvomit/poor soul
review/revuelook over/stage performance
right/rite/writecorrect/ritual/form Leopardtters
ring/wringsound of bell/squeeze out water
road/rode/rowedstreet/past tense of ride/past tense of row
roe/rowfemale deer/use oars
role/rollpart in play/type of bread
root/routepart of plant/roads to take
rose/rowstype of flower/tiers
rote/wroterepetition/past tense of write
rough/ruffcoarse/Elizabethan collar
rung/wrungpast tense of ring/squeezed water out
rye/wrycereal plant/mocking
sail/salecanvas propulsion/selling
scene/seensituation/past tense of see
scull/skullrow alone/head of skeleton
sea/seeocean/be aware of
seam/seemsewn connection/appear
seas/sees/seizeoceans/is aware of/grab
serf/surfagricultural worker/waves
sew/so/sowconnect with thread/thus/plant
shoe/shoofootwear/chase away
side/sighededge/past tense of sigh
sighs/sizebreathes out/dimensions
sleight/slightdeceptive skill/faint
soared/swordpast tense of soar/bladed weapon
some/suma few/total
son/sunmale child/star in the sky
staid/stayedunadventurous/past tense of stay
stair/starestep/look hard
stake/steakwooden post/joint of meat
stationary/stationerymotionless/writing materials
steal/steelrun off with/metal compound
step/steppestair/European plains
stile/stylefence steps/manner
straight/straitnot bending/narrow strip of water
suite/sweethotel rooms/sugary
summary/summerybrief account/to do with summer
surge/sergerush/type of cloth
tail/taleback end/story
taught/tautpast tense of teach/tight
tea/teemeal/golf ball holder
team/teemgroup of players/swarm
tern/turntype of bird/go round a corner
their/there/they’rebelonging to them/in that direction/they are
theirs/there’sthe one belonging to them/there is
threw/throughpast tense of throw/in and out of
thrown/thronepast participle of throw/royal chair
thyme/timetype of herb/progress of days or years
tic/tickhabit/mark (if correct)
tide/tiedflow of water/past tense of tie
to/too/twotowards/as well/2
toad/towedfrog/past tense of tow
toe/towpart of foot/pull
told/tolledpast tense of tell/rang
trussed/trustbound (with rope)/belief
vale/veilvalley/lace face covering (for brides etc)
vial/viletest tube/evil
wade/weighedwalk in water/past tense of weigh
wail/whalehowl/type of ocean mammal
waist/wastemiddle of body/use carelessly
wait/weightdelay or stay/mass
waive/wavegive up/breaker
ware/wear/wherepottery/put on clothes/which place
way/weigh/wheymanner/measure weight/part of milk
ways/weighsmanners/measures weight
we/weepronoun/urination or little
weak/weekfeeble/seven days
weather/whetherclimatic conditions/if
we’d/weedwe would or we had/unwanted plant
we’ll/wheelwe will or we shall/round component
we’ve/weavewe have/make cloth
while/wileas/ruse or cunning plan
whine/winewhimper/alcoholic grape drink
who’s/whosewho is or who has/of whom the
wood/wouldtree material/conditional marker
yoke/yolkpart of plough/yellow part of egg
yore/your/you’reformer times/belonging to you/you are
you’ll/Yuleyou will or you shall/Christmas

Circle theorems

This article explains circle theorems, including tangents, sectors, angles and proofs (with thanks to Revision Maths).

Isosceles Triangle

Two Radii and a chord make an isosceles triangle.

Perpendicular Chord Bisection

The perpendicular from the centre of a circle to a chord will always bisect the chord (split it into two equal lengths).

Angles Subtended on the Same Arc

Angles subtended on the same arc

Angles formed from two points on the circumference are equal to other angles, in the same arc, formed from those two points.

Angle in a Semi-Circle

angle in a semi-circle

Angles formed by drawing lines from the ends of the diameter of a circle to its circumference form a right angle. So c is a right angle.


We can split the triangle in two by drawing a line from the centre of the circle to the point on the circumference our triangle touches.

Divide the triangle in two

We know that each of the lines which is a radius of the circle (the green lines) are the same length. Therefore each of the two triangles is isosceles and has a pair of equal angles.

Two isosceles triangles

But all of these angles together must add up to 180°, since they are the angles of the original big triangle.

Therefore x + y + x + y = 180, in other words 2(x + y) = 180.
and so x + y = 90. But x + y is the size of the angle we wanted to find.


A tangent to a circle is a straight line which touches the circle at only one point (so it does not cross the circle- it just touches it).

A tangent to a circle forms a right angle with the circle’s radius, at the point of contact of the tangent.

angle with a tangent

Also, if two tangents are drawn on a circle and they cross, the lengths of the two tangents (from the point where they touch the circle to the point where they cross) will be the same.

Tangents from an external point are equal in length

Angle at the Centre

Angle at the centre

The angle formed at the centre of the circle by lines originating from two points on the circle’s circumference is double the angle formed on the circumference of the circle by lines originating from the same points. i.e. a = 2b.


You might have to be able to prove this fact:

proof diagram 1

OA = OX since both of these are equal to the radius of the circle. The triangle AOX is therefore isosceles and so ∠OXA = a
Similarly, ∠OXB = b

proof diagram 2

Since the angles in a triangle add up to 180, we know that ∠XOA = 180 – 2a
Similarly, ∠BOX = 180 – 2b
Since the angles around a point add up to 360, we have that ∠AOB = 360 – ∠XOA – ∠BOX
= 360 – (180 – 2a) – (180 – 2b)
= 2a + 2b = 2(a + b) = 2 ∠AXB

Alternate Segment Theorem

Alternate segment theorem

This diagram shows the alternate segment theorem. In short, the red angles are equal to each other and the green angles are equal to each other.


You may have to be able to prove the alternate segment theorem:

proof of alternate segment theorem

We use facts about related angles

A tangent makes an angle of 90 degrees with the radius of a circle, so we know that ∠OAC + x = 90.
The angle in a semi-circle is 90, so ∠BCA = 90.
The angles in a triangle add up to 180, so ∠BCA + ∠OAC + y = 180
Therefore 90 + ∠OAC + y = 180 and so ∠OAC + y = 90
But OAC + x = 90, so ∠OAC + x = ∠OAC + y
Hence x = y

Cyclic Quadrilaterals

cyclic quadrilateral is a four-sided figure in a circle, with each vertex (corner) of the quadrilateral touching the circumference of the circle. The opposite angles of such a quadrilateral add up to 180 degrees.

Area of Sector and Arc Length

A sector

If the radius of the circle is r,
Area of sector = πr2 × A/360
Arc length = 2πr × A/360

In other words, area of sector = area of circle × A/360
arc length = circumference of circle × A/360

Creating off-the-shelf characters

Common entrance exams have a time limit. If they didn’t, they’d be a lot easier! If you want to save time and improve your story, one thing you can do is to prepare three ‘off-the-shelf’ characters that you can choose from. You can work on them beforehand, improving them and memorising them as you go. By the time the exam comes around, it’ll be easy to dash off 8-10 lines about one of your favourite characters without having to spend any time inventing or perfecting them.

Here’s what you need to do.

The first thing to say is that you need your characters to be a little out of the ordinary. Most pupils writing stories tend to write about themselves. In other words, 10-year-old boys living in London tend to write stories about 10-year-old boys living in London! Now, that’s all very well, and the story might still get a good mark, but what you want to try and do is stand out from the crowd. Why not write a story about an 18-year-old intern at a shark research institute in the Maldives?! To decide which one you’d rather write about, you just have to ask yourself which one you’d rather read about. One thing you can do to make sure your characters are special is to give them all what I call a ‘speciality’ or USP (Unique Selling Proposition). It might be a superpower such as X-ray vision or mind-reading, or it might be a special skill such as diving or surfing, or it might be a fascinating back-story such as being descended from the Russian royal family or William Shakespeare – whatever it is, it’s a great way to make your characters – and therefore your stories – just that little bit more interesting.

Secondly, ou should also make sure all your characters are different. Try to cover all the bases so that you have one you can use for just about any story. That means having heroes that are male and female, old and young with different looks, personalities and nationalities. For instance, Clara might be the 18-year-old intern at a shark research institute in the Maldives, Pedro might be the 35-year-old Mexican spy during the Texas Revolution of 1835-6 and Kurt might be the 60-year-old Swiss inventor who lives in a laboratory buried deep under the Matterhorn! Who knows? It’s entirely up to you.

Thirdly, creating an off-the-shelf character is a great way to force yourself to use ‘wow words’ and literary techniques such as metaphors and similes. You may have learned what a simile is, but it’s very easy to forget to use them in your stories, so why not describe one of your heroes as having ‘eyes as dark as a murderer’s soul’? If you use the same characters with similar descriptions over and over again, it’ll become second nature to ‘show off’ your knowledge, and you can do the same with your vocabulary. Again, why say that someone is ‘big’ when you can say he is ‘athletic’, ‘brawny’ or ‘muscular’?

Fourthly, try to stick to what you know. If you’ve never even ridden on a horse, it’s going to be quite tough to write a story about a jockey! Alternatively, if you’ve regularly been to a particular place on holiday or met someone you found especially interesting, then use what you know to create your characters and their backgrounds. It’s always easier to describe places if you’ve actually been there, and it’s easier to describe people if you know someone similar.

So what goes into creating off-the-shelf characters? The answer is that you have to try and paint a complete picture. It has to cover every major aspect of their lives – even if you can’t remember all the details when you come to write the story. I’d start by using the following categories:

  • Name
  • Age
  • Job or education
  • Looks
  • Home
  • Friends and family
  • Personality
  • USP (or speciality)

Names are sometimes hard to decide on, so you might want to leave this one to last, but you just need to make sure it’s appropriate to the sort of character you’re creating. It wouldn’t be very convincing to have a Japanese scientist called Emily!

Age is fairly easy to decide. Just make sure your three characters are different – and not too close to your own age!

Job or education goes a long way to pigeon-holing someone. You can tell a lot from what someone does for a living or what they are doing in school or at university. You can include as much or as little detail as you like, but the minimum is probably the name and location of the school or college and what your characters’ favourite subjects are. You never know when it might come in handy!

Looks includes hair, eye colour, build, skin colour and favourite clothes. The more you describe your heroes’ looks, the easier it’ll be for the reader to imagine them.

Home can again be as detailed as you like, but the more specific the better. It’s easier to imagine the captain of a nuclear submarine patrolling under the North Pole than someone simply ‘living in London’…

Friends and family are important to most people, and it’s no different for the heroes of your stories. We don’t need to know the names of all their aunts, uncles, cousins and grandparents, but we at least need to know who they live with and who their best friends are.

Personality covers many things, but it should show what your characters are ‘like’ and what their interests are. Again, you don’t have to go into enormous depth, but it’s good to introduce the reader to qualities that might be needed later on in the story, such as athleticism or an ability to sail a boat.

USP (or speciality) covers anything that makes a character worth reading about. One of the reasons Superman is so popular is his super powers: his ability to fly, his X-ray vision and the fact that he’s invulnerable. His greatest weakness is also important: Kryptonite. It’s the same for your characters. What can they do that most people can’t? What qualities can they show off in your stories? What will make them people we admire, respect and even love?

Once you’ve created the notes for your three characters, you can write a paragraph of 8-10 lines about each of them. This is your chance to create something that you can easily slot into any of your stories, so use the past tense and stick to what the characters are like, not what they’re doing. That will be different in each story, so you don’t want to tie yourself down.

Try using your characters for stories you’re asked to write by your English teacher (or tutor, if you have one). The more often you use them, the better they’ll get as you change things you don’t like about them, bring in new ideas and polish the wording.

You must be crazy!


Why? What’s wrong with that…?

Teachers and tutors ask pupils to check their work, but how can you do that in Maths without doing the whole sum all over again? Well, you can’t! So how are you supposed to check your work?

What you have to understand first of all is that checking everything is right is very different from checking nothing is obviously wrong. To check everything is right means doing the whole paper twice, but you obviously don’t have time to do that. Checking nothing is obviously wrong is much easier because it just means doing a ‘quick and dirty’ calculation in your head. It doesn’t guarantee that the answer is right, but it’s a good compromise. I call it ‘sanity checking’, which means making sure your answers are not crazy! Unfortunately, there isn’t one method that works for every question – it depends on what type of question it is – but here are a few examples:


If you have to ‘solve for 𝑥’ and it’s a difficult question, try putting your answer back into the original equation and seeing if one side equals the other, eg if you think 𝑥 = 5, then that works for 2𝑥 + 6 = 16, but not for 3𝑥 + 2 = 5. That would be crazy!


Every multiplication sum starts with multiplying the last digit of each number together, so try doing that when you’ve got your answer and checking if the last digit of the result is equal to the last digit of the answer, eg 176 x 467 is going to end in a 2 because 6 x 7 = 42, which also ends with a 2. Your answer couldn’t end in any other number. That would be crazy!


If you have any kind of sum that involves adding, subtracting, multiplication or division, an easy way to check it is to round the numbers to one or two significant figures (eg to the nearest hundred) and work out the answer in your head. If it’s close enough, then your answer is not obviously wrong. If it’s nowhere near, then you’ll have to do it again, eg 1.7 x 3.4 is close to 2 x 3, so the answer might be 5.78, but it wouldn’t be 57.8. That would be crazy!


Most answers in Maths tests need some kind of unit, such as kg, m, cm or ml. Sometimes, the units are provided, but sometimes they’re not. If they’re not, you just need to make sure that you use the right ones, eg if the scale of a map is 1:100,000, the distance represented by 9.8cm is 9.8km, not 9.8m. That would be crazy!