Crossing the tens boundary counting forwards
I can count forwards from 1 to 100, crossing the tens boundary
Crossing the tens boundary counting forwards
I can count forwards from 1 to 100, crossing the tens boundary
These resources will be removed by end of Summer Term 2025.
Lesson details
Key learning points
- The numbers from 0 to 100 have patterns that can help us to count across the tens boundary.
- They are arranged differently on a number track and on a one hundred square.
- We can count the numbers in two ways.
- When a whole number ends in a 9, it is always followed by a decade number.
Keywords
Tens boundary - This is where the pattern of counting changes at the start of the number to show a new decade has started.
Decade number - This is a multiple of 10 which marks the tens boundary where the pattern of counting changes.
Common misconception
Confusion between the number after 29, 39 etc. so saying 29,20 or twenty-none, twenty -ten.
Explicitly look at the numbers that follow a number ending in 9 using stem sentence to support.
To help you plan your year 1 maths lesson on: Crossing the tens boundary counting forwards, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 1 maths lesson on: Crossing the tens boundary counting forwards, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 1 maths lessons from the Pattern in counting from 20 to 100 unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
Licence
Lesson video
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Starter quiz
6 Questions
3 tens 5
5 tens 3
2 tens 8
8 tens 2
Exit quiz
6 Questions
40
50
60
