Ray's New Primary Arithmetic · Lesson XXXVIII · Unit 5: Multiplication
38. Equal groups: the swallows
Goal: Your child sees multiplying as adding equal groups, and uses the word "times".
You'll need
- The book page (it has a picture of swallows)
- About 20 small counters: dried beans, buttons, pennies or pebbles (the book suggests marbles, beans or pebbles)
What's in the book
A picture of swallows, with questions such as "How many birds are three times four birds?" and "Each swallow has two wings: how many wings have eight swallows?"
The lesson, step by step
Talk about the picture
Count the swallows flying and the swallows resting.
Make equal groups
Make 3 piles of 4 beans.
SayThree times four. How many? It is 4 and 4 and 4: twelve.
Wings and legs
Each swallow has 2 wings. For 3 swallows, count 2, 4, 6. Counting by 2s is multiplying by 2.
Book questions
Work through the questions on the page with counters.
Afterwards
Look for equal groups at home: eggs in a carton, wheels on cars, legs on chairs.