Lesson Notes By Weeks and Term v5 - Grade 1

Lesson Video

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Performance objectives

• Count forwards and backwards in ones from 0 to 34.
• Recognise, read, and write numbers up to 34.
• Break down numbers into tens and units.
• Solve simple addition and subtraction word problems.
• Compare numbers using 'more than' and 'less than'.

Lesson summary

Overview This week, we expand our exciting journey with numbers! Having mastered numbers up to 20, we will now explore the numbers all the way to

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4. This is a crucial step for our Grade 1 learners as it solidifies their understanding of how our number system works, especially the concept of 'tens' and 'units' (place value). In South Africa, this skill is used every day. We see numbers bigger than 20 when we look at the price of bread in a spaza shop, count the number of houses on our street, check the date on the calendar, or count how many children are in our class.

Lesson notes

Understanding Numbers Beyond 20: Tens and Units When we count past ten, we start grouping numbers. Think about your fingers – you have 10 of them! This group of 10 is very special in maths. Numbers bigger than 10 are just groups of ten with some extra ones.

Unit (or One): A single item. We can count them one-by-one. (e.g., 1 apple, 1 counter)

Ten: A group of 10 single items bundled together. (e.g., a bundle of 10 sticks, a row of 10 unifix cubes) When we look at a number like 25, we are really saying we have 2 groups of ten and 5 extra units. 2 tens = 20 5 units = 5 Together, they make

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5. We can use a simple chart to show this: | Tens | Units | |------|-------| | 2 | 5 | This helps us see the value of each digit. The '2' isn't just two, it's two tens!