The Year 2 10 More, 10 Less PowerPoint guides both teachers and children through the lesson, including use of the varied fluency, reasoning and problem solving, deeper reasoning and scaffolded resources. Key learning information about this step:
Key Vocabulary
tens: A group of 10 ones together is the same as 1 ten.
ten more: Count forwards by ten.
ten less: Count backwards by ten.
hundred square: A grid of 100 squares, numbered 1 to 100. It can be used to count forwards and backwards and to spot patterns in numbers.
Varied Fluency
Knowledge Organiser
• Designed to support all children via key information and examples.
Scaffolded Examples
• Counting the tens and ones in Base 10; adding or taking away 1 ten to find 10 more and 10 less.
Support
• Q1: Use Base 10 to find 10 more and 10 less; the number is given.
• Q2: Use a hundred square to find 10 more and 10 less; the number is given.
• Q3: Complete a table; the middle number is shown in Base 10.
Core
• Q1: Use Base 10 to find 10 more and 10 less; write the number shown.
• Q2: Use a hundred square to find 10 more and 10 less than a circled number.
• Q3: Complete a table; the given number is always in the middle column.
Stretch
• Q1: Use Base 10 shown in a new order; answers include 99 and 0.
• Q2: Use a hundred square with missing numbers to find 10 more and 10 less.
• Q3: Complete a table when only the 10 less or 10 more value is given.
Reasoning and Problem Solving
Support
• Q1: Reasoning – explain whether a character has correctly found 10 more or 10 less, using Base 10 to help.
• Q2: Reasoning – check a statement comparing two labelled Base 10 models.
• Q3: Problem Solving – use 5 Base 10 pieces to make numbers, then find 10 more or 10 less.
Core
• Q1: Reasoning – explain whether a character has correctly found 10 more or 10 less, using a number track to help.
• Q2: Reasoning – check a statement comparing two Base 10 models.
• Q3: Problem Solving – use 5 Base 10 pieces to make numbers; find 10 more or 10 less so the answer is greater than, or less than, a given number.
Stretch
• Q1: Reasoning – explain whether a character has correctly found 10 more or 10 less; one claim jumps to a multiple of 10.
• Q2: Reasoning – check a statement comparing a Base 10 model with a number.
• Q3: Problem Solving – use 7 Base 10 pieces to make numbers; find 10 more or 10 less so the answer is even and greater than a given number.
Deeper Reasoning
The questions in this set focus on problem solving with Base 10 to deepen understanding in adding and subtracting numbers using concrete objects, pictorial representations, and mentally, including a 2-digit number and 10s.
