In this video Paul Andersen shows you how to engage in argumentation in a mini-lesson on evaluating arguments. Two examples are included in the video and two additional examples are included in the linked thinking slides. <br/>

What happens when you divide things that aren't numbers?

Pupil outcome: I know that a regular polygon has sides that are the same length and angles that are the same size. Key learning points: - In a regular polygon, the sides are all the same length and the angles are all the same size - In...

Pupil outcome: I can use division to calculate the side length of a regular polygon when the perimeter is known. Key learning points: - If you know the perimeter of a regular polygon you can calculate the length of one side. - Divide the...

Pupil outcome: You can identify and describe the relationship between two regular polygons using scale factors Key learning points: - Two similar shapes can be described as being 'x' times greater or smaller than each other. - If one...

Pupil outcome: I can calculate the perimeter of a regular polygon using multiplication. Key learning points: - If you know the length of one side of a regular polygon you can calculate the perimeter. - Multiply the side length by the...

Pupil outcome: I can find lines of symmetry in 2D shapes and explain the link between lines of symmetry and number of sides in regular polygons. Key learning points: - A line of symmetry splits the shape into two equal parts which are...

Pupil outcome: I can use the properties of a range of polygons and the perimeter of a given polygon to deduce missing side lengths. Key learning points: - Missing side lengths can be found if the perimeter is known. - Perimeter problems...

Pupil outcome: I can explain what area is. Key learning points: - Some shapes are better than others to cover the surface and count the area. - The surface of the shape must be covered with no gaps or overlaps; the unit used must...

Pupil outcome: I can recognise and name polygons with five or more sides and recognise the difference between regular and irregular shapes. Key learning points: - The prefix is derived from Ancient Greek. - A regular polygon has sides...

Pupil outcome: I can form and solve equations using my knowledge of angles and polygons. Key learning points: - Missing angles can be found in polygons using knowledge of exterior and interior angles. - A missing angle can be represented...

Pupil outcome: I can explain the properties of various polygons. Key learning points: - Quadrilaterals can be described and identified using their properties. - Triangles can be classified according to their properties. - Polygons can be...

Pupil outcome: I can find the exterior angle of any regular polygon or deduce the exterior angle of an irregular polygon. Key learning points: - The sum of the exterior angles of a polygon can be demonstrated using a point. - The sum of...

Pupil outcome: I can calculate the perimeter of rectangles, triangles, parallelograms and trapeziums efficiently. Key learning points: - The perimeter of any polygon can be found by adding but this may be time consuming. - By considering...

Pupil outcome: I can find the interior and exterior angles of regular polygons. Key learning points: - Exterior angles of a regular polygon are equal. - The size of the exterior angle of a regular polygon can be determined. - Interior...

The sum of the exterior angles of a polygon is discussed in this video. We derive the rule, solve practice problems, and then at the end we look at an interesting relationship between the sum of the INTERIOR angles and the sum of the...

This video explains lines of symmetry of 2D shapes including triangles, quadrilaterals and regular polygons. Practice questions and answers are at the end of the video.

This video provides a range of practice questions and answers on the topic of rotational symmetry.

Test your knowledge of interior and exterior angles in maths! This video provides a range of practice questions and answers on the topic!

This video explains interior and exterior angles of a polygon. In particular: how to calculate interior and exterior angle, how to find the sum of interior or exterior angles, and how to find the number of sides of a polygon with just an...

This video covers the names of polygons and 2D shape properties. Learn the difference between regular & irregular polygons and the names of these polygons such as pentagon and hexagon.

This video explains what tessellations are, and how to calculate if a shape will tessellate to form a pattern.

This video covers what we mean by 'regular polygons' and the different types you need to know. We also cover how many lines of symmetry and rotational symmetry they each have.



This video is suitable for maths courses...

Mr. Addit introduces tessellations. He talks about how tessellations are made, identifies tessellations, and names them.