# Year 3 – Week 39 – Comparing angles – Monday

### About types of angles for Year 3 …

MyMiniMaths introduces acute angles and obtuse angles for Year 3 with the free daily fluency and home learning learning packs. Learners begin with acute angles, obtuse angles and right angles and develop their understanding of how these different types of angles compare in size. Learners can identify how the same type of angle can be of different sizes and how these can be compared and ordered. This understanding is extended by recognising types of angles in 2D shapes. In Year 4 this extends to further comparing acute angles and obtuse angles in week 11, then introducing reflex angles in Year 5 in week 41. Although this specific skill does not extend beyond Year 5, a secure understanding of types of angles is essential in calculating missing angles in geometrical shapes in Year 6 and further into Key Stage 3, where expressing an angle size using algebra blends multiple areas of the curriculum together.

The learner often finds the boundaries for each size of angle the most challenging to remember and recall. Obtuse and acute angles are frequently mixed up and often only require a gentle reminder to learners of their mistake. Angles close to the size of another can also pose a challenge, such as acute angles between 85 and 89 degrees and obtuse angles in the range of 91 and 95 degrees. Careful identification can be supported through the use of a square edge such as a piece of paper or book to identify the size of an angle in relation to a right angle.

### Varied Application…

Varied application is the use of 2 or more learning objectives in different contexts. Skills are readily used across the maths curriculum, often without realisation, giving opportunity for learners to apply their understanding and confidence with types of angles for Year 3 in a variety of mathematical contexts. Varied application promotes the wider curriculum and extends the coverage of skills outside of discrete lessons. Angles feature in many areas of the maths curriculum and can be applied in other **Year 3** learning objectives including:

**WEEK 4 –**draw 2D shapes**WEEK 8 –**identifying right angles**WEEK 24 –**perpendicular lines**WEEK 31 –**angles in 2D shapes