Cogito
Pre-K Math · Chapter 4 · Lesson 3
Which Group Has More
Comparing your piles.
10 problems · about 7 minutes · PK.CC.4, PK.MD.2
What this lesson teaches
The child compares sorted groups and identifies which has more.
- Sort first, then count each pile.
- The bigger number has more.
Warm-Up Review
From earlier lessons. Loosen up before the new work.
5 problemsReview — Sorting by Shape and Size: Five small cars and one big. How many small?
Answer 5
Why Five.
Review — Sorting by Colour: 🔵🔵🔵🔴. How many blue?
Answer 3
Why Three.
Review — Shape Hunt: A plate is what shape?
Answer A circle.
Why A circle.
Review — Rectangles: How many sides does a rectangle have?
Answer 4
Why Four.
Review — Triangles: How many corners does a triangle have?
Answer 3
Why Three.
Warm Up
Straightforward practice. Get the method working first.
2 problemsWhich is more, 8 or 5?
Answer 8
Why Eight.
Which is more, 6 or 4?
Answer 6
Why Bigger number.
Build It Up
The same ideas with more to keep track of.
1 problemWhich is fewer, 2 or 7?
Answer 2
Why Smaller number.
Stretch Yourself
Mixed problems. Work out what kind of question it is before you start.
2 problemsSix cats, two dogs. How many more cats?
Answer 4
Why Match them up.
Stars and Hearts: Five stars and three hearts. Which has more?
Answer 5
Why Stars, five of them.