Kindergarten · Math · week 2

One more, one less

Find one more and one less than a given number up to 10.

One more means the next number up. One more than 3 is 4. One less means the number right before. One less than 3 is 2.

Use your fingers to check. Hold up the number, then add one finger for one more, or put one finger down for one less.

📋 For the teacher

Teach it (10–15 min):

Use fingers or small toys. Show the number, then add or take away just one.
Say one more and one less often during the day, like with snacks or steps on the stairs.
Point to a number on a number line and ask what comes on each side of it.
Keep numbers small and go slowly. This idea takes real practice to feel automatic.

Talk about it:

Mastery looks like: They quickly say one more and one less than any number up to 10, without recounting from 1.

Common stumbles: Recounting from 1 every time instead of stepping just one number up or down; mixing up more and less.

Records attendance + 15 min of Math for this learner.