Kindergarten Mathematics | Chapter 6: Teen Numbers, Place Value and Patterns
Student reading edition. Read the full lesson with an adult, study the example, then complete independent practice. Five daily lessons in one chapter, not a full 36-week textbook.
Day 1: Build Teen Numbers
Read and understand
A teen number from 11 through 19 is made with one group of ten and extra ones. Put ten counters into a ten-frame and place four more beside it. You have fourteen counters. Write 14 = 10 + 4. The numeral 1 in 14 means one ten, not one object. The numeral 4 means four ones.
Worked example
Build 16: fill one ten-frame and add six counters. Count 10, 11, 12, 13, 14, 15, 16. Write 16 = 10 + 6.
Oral practice preview
- Write 13 as 10 + __.
- How many ones are in 18?
After reading, complete Chapter 6 Day 1 in the separate practice book.
Day 2: Count Forward and Backward Within 20
Read and understand
To count forward, say the next number in order. To count backward, say the number just before. Use a number line from 0 to 20. Starting at 14 and moving forward three spaces lands on 17. Starting at 19 and moving backward four spaces lands on 15. Touch each number as you say it.
Worked example
Count back from 16 by three steps: 15, 14, 13. Stop at 13. A step is a move to the next mark, not a count of the starting mark.
Oral practice preview
- Which number comes after 16?
- Which comes before 20?
After reading, complete Chapter 6 Day 2 in the separate practice book.
Day 3: Compare Teen Numbers
Read and understand
To compare two numbers, build or draw each quantity. Both 13 and 17 have one ten, so compare the extra ones: three and seven. Seventeen is greater than thirteen. Use the words greater, less and equal in full sentences. Never judge only by which numeral looks bigger on paper.
Worked example
Compare 15 and 12. Both contain ten. Five ones are more than two ones, so 15 is greater than 12.
Oral practice preview
- Which is greater, 14 or 19?
- Which is less, 12 or 16?
After reading, complete Chapter 6 Day 3 in the separate practice book.
Day 4: Repeat and Grow Patterns
Read and understand
A repeating pattern follows a group that begins again, such as circle, square, circle, square. A growing number sequence follows a rule that changes the amount, such as 2, 4, 6, 8. Explain the rule before filling in a missing item. Patterns can use colors, movements, shapes or numbers.
Worked example
Pattern: clap, stomp, clap, stomp. Its repeated unit is clap then stomp, so the next action is clap.
Oral practice preview
- Continue: red, blue, red, blue, __.
- Continue: triangle, circle, triangle, __.
After reading, complete Chapter 6 Day 4 in the separate practice book.
Day 5: Chapter Review: Represent and Explain
Read and understand
Use a ten-frame, counters or number line to show what you know. Start with a group of ten, count extra ones, and compare numbers by the quantities they represent. Read each question carefully. A correct explanation is more useful than a guess.
Worked example
For 10 + 9, fill one ten-frame and add nine counters, then write 19. Check by counting all counters once.
Oral practice preview
- Write 16 as 10 + __.
- Which number comes before 15?
After reading, complete Chapter 6 Day 5 in the separate practice book.
Chapter review and progression
Review key vocabulary and explain an example from each lesson before moving on.