Add by bridging 10 using number bonds to 10 - Teaching Presentation - Year 1

This presentation provides three days of teaching that cover the objectives:

• Bridge 10 with bead strings and beaded lines.
• Bridge 10 with Fly on a number grid.
• Add, deciding whether or not the addition will bridge 10.

It includes starter activities, whole class teaching, group activities, practice sheets and mastery questions. It can be used on a variety of interactive whiteboards.
Day 1 Teaching
Show children the bead bar. Slide 8 beads to one side. Model adding 3 by sliding 2 beads to make 10, then 1 more. Repeat to show 7 add 5 by adding 3 to make 10 and then adding 2 more beads. When we add in two steps like this, stopping at 10, we call it bridging 10. Repeat, to find 8 + 5, 6 + 5 and 9 + 6, bridging 10 on the bead bar, with children replicating on bead strings.

Day 2 Teaching
Show children a 1-100 number grid and Fly. Remind them that Fly can make a short flight to the next 10 from any number. Demonstrate adding 5 to 25 using Fly. Then model adding 5 to 17, using Fly to go to 20 first, and then counting on 2 more. Record: 17 + 5 = 22. Do you see how we bridged 20, a 10s number? Repeat for 28 + 6 and 36 + 5.

Day 3 Teaching
Use a 100 bead bar to show children 36 + 5, an addition bridging 10. Then discuss how we can recognise if an addition will need to cross a 10s number. Repeat for 57 + 4 and 35 + 7. Model drawing hops for 35 + 7 on a beaded line.

This teaching is part of Hamilton’s Year 1 More Addition and Subtraction block. Each Hamilton maths block contains a complete set of planning and resources to teach a term’s worth of objectives for one of the National Curriculum for England’s maths areas.