Bridges in Mathematics Kindergarten, Unit 2: Numbers to Ten

In this unit, your child gets to know every number from 0 to 10 up close: counting out exactly the right amount, writing each numeral, and deciding which of two groups has more. It builds on the first unit's everyday counting, and that steady sense of how many helps in the next unit, where shapes on bikes and wagons share time with small adding stories.

By Math teacher, parent, and founder of Bobby’s Math Club

What is my child learning in Unit 2?

Sample questions to try together

These are real questions from our practice. Tap the speaker to hear one read aloud, or the light bulb for a hint, and talk about the answer together.

Question 1 of 3

How many apples do you see?

Apples: apple, apple, apple, apple, apple, apple, apple, apple.
  • 9
  • 7
  • 8

How you can help

  1. Ask your child to count out a number of spoons, napkins, or socks, such as 7, then check together whether they stopped at exactly the right one.
  2. Make two piles of laundry, such as 6 shirts and 4 towels, and ask which pile has more and how your child can be sure without guessing.
  3. Write the numbers 0 to 10 on paper plates, mix them up, and let your child line them up in order before stepping along the row while counting.

Where kids can get stuck

  • Continuing past the number asked for, handing over 8 spoons when 7 were asked for, because they forgot to stop.
  • Judging a long, spread-out row of 5 shoes as more than a short, tight row of 7 shoes.
  • Mixing up 6 and 9 when writing or reading them, since the two numerals look so alike.

Practice makes perfect

Bobby's Math Club has practice problems that adapt to your child’s level, each with a detailed explanation and an easy-to-follow video, so your child can build confidence in these skills one step at a time.

Words your child will hear

numeral
The written symbol for a number, like 7.
zero
The number for none at all, written 0.
count out
To count just the number of things someone asks for, then stop.
one more
The next number when counting; one more than 6 is 7.
more
Having a larger number of things than another group.
fewer
Having a smaller number of things than another group.
same
Having exactly as many as another group.

Want to help your child master numbers to 10?

In Bobby's Math Club, your child practices these skills at just the right level, with a hint when they need one, a clear explanation after every question, and kid-friendly videos. Unlimited practice is free.

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Robert “Bobby” Barnett

Written by Robert “Bobby” Barnett

Bobby is an award-winning math teacher, the author of Meet Every Learner’s Needs, and the father of two elementary-school math learners. He uses Bobby’s Math Club with his own kids a few times every week. Learn more or contact Bobby.

Which math standards does Bridges in Mathematics Kindergarten Unit 2 cover?

Bridges in Mathematics Kindergarten Unit 2 covers these math standards. Each one links to what it means, sample questions, and teaching strategies.

  • K.CC.A.3: Write numbers from 0 to 20.
  • K.CC.B.4: Understand the relationship between numbers and quantities.
  • K.CC.B.5: Count to answer "how many?"
  • K.CC.C.6: Identify greater than, less than, or equal to groups.

All kindergarten math standards

For teachers: Unit names and order vary between editions and districts, so your school’s own materials have the exact sequence. Learn how Bobby's Math Club can help your students grow.