32) Starting at Twenty: Using Numbers
Counting Backwards from 20
Understanding Activity
This is an ‘understanding’ (proficiency strand) activity.
Please refer to the instructions in the appropriate Implementation Planner for your context.
Place Value Arrow Cards
Click the image to download the pdf.
Print on card. The thicker the card, the easier they are to manipulate.
Use in all sessions, except Session 3.
Number Cards
Click the image to download the pdf.
Print on card. The thicker the card, the easier they are to manipulate.
Use in Session 3.
Mathematics
- Develop fluency counting backwards in the correct order from 20 to 10.
- Identify numbers from 11 to 19 as a two-part bond made of 10 plus a single-digit number.
- Connect the length of the Bond Blocks, number name and numeral.
Language
- One shorter.
- One less than.
- One number before.
- A number is made up of digits in the same way a word is made up of letters. The number 16 is made up of the digits one and six.
Place value: The place of a digit in a number determines the digit’s value (worth). - In the number 16 the digit one is in the tens place so is worth one ten, ten.
- The digit six is in the ones place so is worth six ones, six.
Differentiation
A little easier
“Ten And Ones”
Repeat Session 1 using the language “ten and ones”.
Note:
Session 1 uses the language “ten then ones”
Session 2 uses the language “ten add ones”
See the Board 1 from the A Little Easier chapter.
A little harder
Write the Number
Player One builds the number using the arrow cards, saying “tens, then one”.
Player Two writes and says the number.
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