31) Starting at Twenty: Using Words

Counting Backwards from 20

71.1 Near Ten Strategy 9

Understanding Activity

This is an ‘understanding’ (proficiency strand) activity . Please refer to the instructions in the Implementation Planner.

Number Board

Bond Blocks fit on this board. Use it in Sessions 1, 2 and 3.

  • Project for “We Do”.
  • Print for students “You Do”. 
Click the image to download. 

Mathematics

  • Develop fluency counting backwards in the correct order from 20 to 10.
  • Connect the length of the Bond Blocks and number name.
  • Identify numbers from 11 to 19 as a two-part bond made of 10 plus a single-digit number.

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

Correcting ‘teen’ and ‘ty’ Errors

Please read the Teacher Note “Correcting ‘teen’ and ‘ty’ Errors” pages 78 – 83.

A little harder

AAA

P

AAA

P

Progression