Singapore Math Drills Team · 2 November 2026
Free, distraction-free math drills aligned to the MOE syllabus. No sign-up needed to try.
A square, a triangle and a circle stand in a row on the grass, each with a smiling face and two little waving hands. "Meet the shape friends!" One by one they step forward, show what makes them special, and then pop together into something new.
That is Shape Friends, a 30-second Primary 1 episode of our Topic Explainers series. It is made for your child to watch, with big pictures, a few simple words on screen and no voice-over. Watch it together first, then read on.
The video moves in three steps. First, four shape friends say hello: the square lights up its sides 1, 2, 3, 4; the triangle 1, 2, 3; the rectangle 1, 2, 3, 4; and the circle glows all the way round. Next, a circle is cut into 2 half circles, then cut again into 4 quarter circles. Last, the friends snap together into a house: a square wall, a triangle roof, a rectangle door and a round window. "4 shapes make a house!"
In Primary 1, the MOE syllabus asks children to name and describe six flat shapes (rectangle, square, triangle, circle, half circle and quarter circle), to make pictures from them, and to name the shapes inside a picture. Shape Friends touches all three.
Young children often recognise a shape by its overall look: "that one is pointy", "that one is like a door". That is a good start, but it breaks down as soon as a shape is tilted, stretched or a different colour. The habit that lasts is to name a shape by what it has.
1. Count the sides. A side is one straight edge. Touch each side with a finger and count aloud as you go, the way the video lights them up one at a time.
2. Look at the sides, not the colour or the size. A tiny triangle and a giant triangle are both triangles. A blue square and a yellow square are both squares. In the video each friend keeps one colour, which helps your child tell them apart, but the colour is never what makes the shape.
3. Cut a circle into equal parts. Cut a circle straight across the middle into 2 equal parts and each part is a half circle. Cut it again the other way and you get 4 equal parts: each one is a quarter circle. The word "equal" matters. Two pieces of different sizes are not halves.
4. Put shapes together, and take them apart. Shapes can be joined to make a picture, like the house. Turn it around, and your child can look at any picture and say which shapes are hiding in it.
All three examples follow the video. Use your finger, or your child's, on the screen or on a drawing.
Here is a shape with 3 straight sides. What is it called?
Step 1: Count the sides. Touch each side once and count: 1, 2, 3.
Step 2: Match the count to a name. Three sides means a triangle.
Now try the same with a shape that has 4 sides. It is a rectangle or a square, so there is one more question to ask: are all 4 sides the same length? If yes, it is a square. If two sides are long and two are short, it is a rectangle.
A circle is the easy one: no straight sides to count, just round all the way round.
Cut a circle into 2 equal parts. What is each part called? Now cut again. What is each part called now?
Step 1: The first cut. One straight cut through the middle makes 2 equal parts. Each part is a half circle.
Step 2: The second cut. One more cut, the other way through the middle, makes 4 equal parts. Each part is a quarter circle.
Check: put the 4 quarter circles back together. They make the whole circle again, with no gaps and nothing left over. In the video, the whole circle is gone the moment the halves appear, and the halves are gone the moment the quarters appear, so your child sees that the parts always add up to one circle.
A house is made of a square wall, a triangle roof, a rectangle door and a round window. How many shapes make the house?
Step 1: Name each part. The wall is a square. The roof is a triangle. The door is a rectangle. The window is a circle.
Step 2: Count the parts. Point and count: 1, 2, 3, 4.
4 shapes make a house.
Draw a rocket: a tall rectangle for the body, a triangle on top, and a small triangle on each side at the bottom. Which shapes are in the rocket? How many triangles are there?
There is 1 rectangle and there are 3 triangles: one on top and one on each side. That makes 4 shapes in all. Ask your child to point to each triangle as they count, so no shape is counted twice or missed.
When your child is ready for shapes you can pick up and hold, such as a dice or a ball, those come in Primary 2. Our post on P2 3D shapes in the toy box picks up from there.
At P1, shapes settle in through looking, touching and talking, a little at a time, not through long sessions of worksheets. That is how we built Singapore Math Drills. Practice is calm by design: no guilt-tripping over a missed day and no dark patterns, and your child's progress is only ever measured against their own.
Our free sample has real practice questions for every Primary level, with no login and no download. Name the shapes. Build with them!
Try a free interactive Primary 1 worksheet and see how calm practice feels, with no signup or credit card required.