Kindergarten · Math · week 29

The counting marathon: 1 to 100

Count forward by ones from 1 to 100 without skipping numbers, especially through each decade transition.

This is the big one, the counting marathon. One hundred numbers, one at a time, without missing a single one. Take a breath and go steady, like a marathon runner, not a sprint.

You already know every decade word (twenty, thirty, forty) and every teen. Now you just have to keep going, all the way to 100.

📋 For the teacher
Teach it (10–15 min):
  • Do this as a special, celebrated event, maybe with a cheer at 100.
  • If they get tired or lose their place, that is completely normal. Take a short break and try again.
  • Watch closely at each decade change (79-80, 89-90, 99-100) for the trickiest spots.
  • Note this moment when they finish 1 to 100 for the first time. It is a big milestone.
Talk about it:
  • How did it feel to count all the way to 100?
  • Which part of the count felt hardest?
  • What do you want to do to celebrate reaching 100?

Mastery looks like: They count from 1 to 100 by ones without skipping a number, including every decade transition.

Common stumbles: Losing the sequence at a decade change (79-80, 89-90, 99-100); needing to restart from 1 after losing their place.

See it visually

Interactive, spoken-aloud tools that show this idea in motion.

Counting & Ten-FramesCount objects in ten-frames and base-ten blocks, one tap at a time.try →
Homework for this lessonType it, write it with a stylus, or print it for pencil & paper.open →
Records attendance + 15 min of Math for this learner.
← Back to todayAll coursesYear planner