The big ideaAdd one more, and the number goes up by one.
How it works
One more bead makes the number go up by one.
Slide one more bead across the row, then count: you get the next number.
Two beads and one more make three. Three and one more make four.
Four beads are across.
🧱one🧱🧱two🧱🧱🧱three
Steps of blocks: each step has one more block.
Example 1: Two and one more
Slide two beads across the frame.
Slide one more bead across.
Count them all: one, two, three.
2 + 1 = 3
Two beads and one more: three across.
Example 2: Four and one more
Slide four beads across.
Slide one more bead across.
Count on: five.
4 + 1 = 5
Four and one more: five across.
Example 3: Seven and one more
Seven beads are across.
Slide one more across.
The number after seven is eight.
7 + 1 = 8
Seven and one more: eight across.
Words to know
one more
One bead added, so the number goes up by one.
across
A bead slid across counts.
add
To put more with what you have.
Watch out
Slide only one bead for one more.
Say the number you had, then count on one bead.
One more always makes more beads, never fewer.
Try it
Five beads are across. Add one more. How many?
What is 8 + 1?
Ben has one block and gets one more. How many blocks?
Answers: 1. 6 · 2. 9 · 3. 2
Try at homeAsk a grown-up to help you line up a few spoons or blocks. Count them. Then add one more, and count again. What number came next? Slide the same beads on the frame if you have one.
For grown-upsLine up a few spoons or blocks, count them, add one more and count again. Ask what number came next.
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