Halving Even Numbers to 20
Extending halving skills to even numbers up to 20 using concrete materials.
Key Questions
- Compare halving numbers to 10 with halving numbers to 20.
- Construct a method to halve the number 16.
- Justify why only even numbers can be halved into two equal whole numbers.
National Curriculum Attainment Targets
About This Topic
The Daily Mile (or sustained physical activity) focuses on building stamina and the habit of regular movement. In the UK National Curriculum, this addresses the requirement for 'sustained physical activity' and 'Health and Fitness.' For Year 1 students, this is about learning to pace themselves so they can move for longer periods without getting too tired to continue.
This topic also introduces goal-setting and personal progress. Students learn that 'practice makes permanent' and that their bodies get better at moving the more they do it. This topic comes alive when students can physically model the patterns of a steady pace, using collaborative investigations to find the 'perfect speed' that allows them to keep going while still being able to talk.
Active Learning Ideas
Inquiry Circle: The Talk Test
In pairs, students jog around the field. They must try to say a full sentence to their partner (e.g., 'I like playing football on Saturdays'). If they are too out of breath to finish the sentence, they are going too fast and must slow down to a 'stamina pace.'
Think-Pair-Share: Personal Best Goals
Students count how many laps of a small circuit they can do in 3 minutes. They share their number with a partner and set a 'goal' for next week (e.g., 'I want to do one more lap' or 'I want to keep moving the whole time').
Simulation Game: The Tortoise and the Hare
Half the class starts a 5-minute movement task by sprinting (the Hares), while the other half moves at a steady, slow jog (the Tortoises). After 2 minutes, they discuss who feels more tired and who is likely to finish the full 5 minutes.
Watch Out for These Misconceptions
Common MisconceptionStudents often think that 'exercise' must be a fast sprint to count.
What to Teach Instead
Sprinting is only one type of fitness. Use the 'Tortoise and the Hare' simulation to show that 'stamina' (staying power) is just as important. Explain that a steady pace helps the heart and lungs get stronger over a long time.
Common MisconceptionChildren may believe that if they feel tired, they should stop immediately.
What to Teach Instead
While they should never push through pain, 'feeling tired' is a normal part of building stamina. Teach them to 'drop a gear' (slow down to a walk) rather than stopping completely, surfacing this through the 'Talk Test' activity.
Suggested Methodologies
Ready to teach this topic?
Generate a complete, classroom-ready active learning mission in seconds.
Frequently Asked Questions
What is the 'Daily Mile' initiative?
How can I keep Year 1s motivated for sustained running?
How does stamina help with learning in the classroom?
How can active learning help students understand stamina?
Planning templates for Mathematics
5E Model
The 5E Model structures lessons through five phases (Engage, Explore, Explain, Elaborate, and Evaluate), guiding students from curiosity to deep understanding through inquiry-based learning.
unit plannerMath Unit
Plan a multi-week math unit with conceptual coherence: from building number sense and procedural fluency to applying skills in context and developing mathematical reasoning across a connected sequence of lessons.
rubricMath Rubric
Build a math rubric that assesses problem-solving, mathematical reasoning, and communication alongside procedural accuracy, giving students feedback on how they think, not just whether they got the right answer.
More in Multiplicative Thinking and Data
Doubling Numbers to 10
Understanding the concept of twice as many and finding doubles of numbers up to 10.
2 methodologies
Halving Even Numbers to 10
Practicing halving even numbers up to 10 using concrete materials.
2 methodologies
Making Equal Groups
Solving simple multiplication problems by making equal groups using concrete objects.
2 methodologies
Sharing Equally
Dividing a set of objects into equal groups to solve simple division problems.
2 methodologies
Introduction to Fractions: Halves of Shapes
Understanding halves of shapes and identifying when a shape is divided into two equal parts.
2 methodologies