Progression in Mastery Year 4 Triangles Did you Slides: 11 Download presentation Progression in Mastery Year 4 Triangles Did you know there are different types of triangles? ©Deepening Understanding LTD 2020 Let’s do this! A polygon is a closed 2 D shape with straight sides. Sort these shapes. Polygon Non-polygon ©Deepening Understanding LTD 2020 Let’s revisit what we should know Complete the stem sentences. An _______ angle is smaller than a _______ angle. A _______ angle is smaller than an _______ angle. We say You I all say it!it!it! ©Deepening Understanding LTD 2020 Let’s learn There are three types of triangles and we identify them by their sides and angles. equilateral isosceles ©Deepening Understanding LTD 2020 scalene Let’s learn An ____ triangle has three ____ sides and three ____ angles. equilateral ©Deepening Understanding LTD 2020 Let’s learn An ____ triangle has two ____ sides and two ____ angles. isosceles ©Deepening Understanding LTD 2020 Let’s learn A ____ triangle has no ____ sides and no ____ angles. scalene ©Deepening Understanding LTD 2020 Let’s talk Connect the triangles below to the correct label. equilateral isosceles ©Deepening Understanding LTD 2020 scalene Let’s develop our learning A triangle with a right angle can also be called a rightangled triangle. Which types of triangle can be right-angled? ©Deepening Understanding LTD 2020 Independent Task Now, complete the Triangles Worksheets. ©Deepening Understanding LTD 2020 Exit task – Dong Nao Jin How many of each type of triangle can you see in this image? ©Deepening Understanding LTD 2020