Step 2 Lesson 5

• Home
• Canvas Guide

Partial Progress - Circles (browser only)

Place Value

Objectives

To identify specific digits within a number and be able to work with those digits.

To recognize the value of place within a number.

Resources

Abacus 4 Textbook 1 | Squared paper

Today's Lesson

Main Activity

During the course of this week, students who do not know their times tables should have been learning the 3 times table and re-capping the 2 times table, so that they are able to answer random questions on both of these.

 Ask you student a range of questions to assess their times tables knowledge.

Turn to page 15 in Abacus 4 Textbook 1.  

Watch the video to 4:08 to understand how to compare numbers using the > and < symbols.

Ask your student to copy and complete Questions 1 – 6 with the appropriate symbol. Remind your student that the ‘greedy crocodile’ (the ‘greater than’ or ‘less than’ symbol) has his mouth open towards the larger number.

Watch the video from 4:08 onwards to understand how to find 1 more, 1 less, 10 more or 10 less than a number. Look at the Questions 7 – 10.

Ask your student to write each number on a place value chart which should help them to complete the task.

Point out to your student that they will only need to work with one digit of the number for each column, and that where that digit is placed in the number determines its value. ‘1 more’ and ‘1 less’ will only involve the ones digit. ‘10 more’ and ‘10 less’ will only involve the tens digit. 

For example:

‘1 more’ than 85 means we add 1 to number, or, the ones digit increases by 1 so the number becomes 86.

’10 more’ than 85 means we add 10 to the number, or, the tens digit increases by 1 (1 lot of 10) so the number becomes 95.

Pay special attention to Number 9, as it crosses the hundreds barrier.

To record their answers, your student could create a chart with five columns on the squared paper. Each column should be at least four squares wide. The headings of the columns are to be: 

Complete P15.