Properties of Shape - Quadrilaterals Decimals Activity - Presentation

In today's lesson, students will delve into the world of quadrilaterals, exploring their properties and identifying them among other shapes. The session starts with a discussion that challenges a common misconception: not all rectangles, squares, and parallelograms are quadrilaterals, but rather, these are specific types of quadrilaterals. Students are presented with various shapes and tasked with identifying the odd-one-out, such as a pentagon among quadrilaterals, due to its five sides, distinguishing it from the four-sided figures.

The lesson continues with activities that further investigate the characteristics of quadrilaterals. Students are asked to spot the odd-one-out based on attributes like the number of straight sides or the number of vertices. Each shape is analyzed to confirm that it is two-dimensional, closed, has four straight sides, and four vertices—key properties of quadrilaterals. The class is also encouraged to engage in hands-on learning by drawing different quadrilaterals on a 3 by 3 grid, using a geoboard and elastic bands to visualize the concepts. They are then challenged to consider how many different quadrilaterals they could draw on a larger 4 by 4 grid, allowing for a deeper understanding of the geometric principles at play.