Te Kete Ipurangi
Communities
Schools

### Te Kete Ipurangi user options:

Level Two > Number and Algebra

# How Old?

Keywords:
Student Activity:

Click on the image to enlarge it. Click again to close. Download PDF (231 KB)

Purpose:

This is a level 2 number activity from the Figure It Out series. It relates to Stage 5 of the Number Framework.

Specific Learning Outcomes:

investigate "teen" and "ty" numbers

Required Resource Materials:
FIO, Level 2, Number, Book 1, How Old?
Copymaster of Table
Activity:

This activity uses the knowledge that the students have developed in Shaker Makers on the previous page by asking them to distinguish between “teen” and “ty” numbers.
The students need to have had various learning experiences where written numbers are presented alongside a concrete model of that number, as shown in Shaker Makers. Beans or counters can be grouped in tens in opaque film canisters; ice-block sticks can be bundled into tens; multilink cubes can be joined into stacks of 10. With all of these materials, the students create the unit of 10 by grouping 10 ones and can also easily break the 10 into ones again.
The hundreds board can be a useful reference point for the students to check how a number looks. However, students who are still confused about “teen” and “ty” numbers should do more activities that involve making numbers with concrete materials (such as those in Shaker Makers) before moving on to the more abstract work on this page.

#### Answers to Activity

AttachmentSize
HowOld.pdf35.43 KB
HowOld.pdf230.93 KB

## Shaker Makers

This is a level 2 number activity from the Figure It Out series. It relates to Stage 5 of the Number Framework.

## Teen numbers (building with ten)

The purpose of this unit of sequenced lessons is to develop knowledge and understanding of the place value structure of the numbers from ten to twenty.

These teaching and learning activities support Student e-ako Place Value 1, pages 6-15 and to complement the learning activities found in Book 5, Teaching Addition, Subtraction and Place Value.

This is the fourth of a series of units developing place value concepts. This unit builds on the previous units of work:

The units that follow are:

## Writing 1 000

This is a level 3 number activity from the Figure It Out series. It relates to Stage 6 of the Number Framework.

## Space Zapper

This is a level 2 number link activity from the Figure It Out series. It relates to Stage 5 of the Number Framework.

## Jungle Land

This is a level 2 number link activity from the Figure It Out series. It relates to Stage 5 of the Number Framework.