Lesson 5.1 Tens and Ones

Steps

1. Warm-up

   Do this: Ask these out loud. Your child answers out loud; no paper needed.

   • Ask: “What number is ten less than 36?” Listen for: 26
   • Ask: “What number is ten more than 24?” Listen for: 34
   • Ask: “What number is ten less than 51?” Listen for: 41
   • Ask: “What number is ten more than 43?” Listen for: 53
   • Ask: “What number is ten more than 79?” Listen for: 89
2. Teach the new idea

   Say this: “In 47, the 4 means 4 tens (40) and the 7 means 7 ones.”

   Say this: “Ten ones can be bundled into one ten.”

   Say this: “Tens place: the left digit in a two-digit number.”

   Say this: “Ones place: the right digit.”

3. Show how

   Show: How many tens and ones are in 75?

   Say this: “The tens digit is 7: 7 tens = 70.”

   Say this: “The ones digit is 5.”

   Say this: “70 + 5 = 75”

   Answer: 7 tens 5 ones

   Show: 7 tens and 7 ones make what number?

   Say this: “7 tens = 70”

   Say this: “70 + 7 = 77”

   Answer: 77

4. Practice together

   Do this: Your child does these with you. Let them try first; help only after a real try.

   Ask: What number do the blocks show?

   

   Listen for: 14

   If stuck: 1 tens = 10

   Ask: What number do the blocks show?

   

   Listen for: 43

   If stuck: 4 tens = 40

   Ask: What number do the blocks show?

   

   Listen for: 49

   If stuck: 4 tens = 40

   7 more practice items on the lesson page, and on Worksheet A and Worksheet B.

5. Watch for
   • Reading 47 as 4 and 7. It is forty-seven: 40 and 7.
6. Game: Bundle Race

   Roll two dice and take that many sticks. Each time you have ten, bundle them with a rubber band. First to 100 (ten bundles) wins.

7. Narration

   Say this: “Tell me what you learned today. Show me with your hands or the counters if you like.”

   Listen for: Show a two-digit number as tens and ones.

8. Scripture

   Moreover thou shalt provide out of all the people able men, such as fear God, men of truth, hating covetousness; and place such over them, to be rulers of thousands, and rulers of hundreds, rulers of fifties, and rulers of tens:

   Moses organized the people by tens, fifties, hundreds and thousands. Grouping by tens makes big numbers easy to handle.

9. Daily habit

   Count to 120 by tens and by ones. Count by tens starting from any number: 7, 17, 27 …

Spread over the week

5 sessions of 20–25 minutes. Stop while it is still going well.

1. Session 1. Warm-up, then teach the new idea (steps 1 and 2).
2. Session 2. Warm-up again, then show how with the examples.
3. Session 3. Practice together, then play the game.
4. Session 4. More practice on the worksheet, and the daily habit.
5. Session 5. Quick check: narration and a few practice items. Move on when it is mostly right.