Converting and Comparing Units of Length - PowerPoint

In a comprehensive lesson aimed at Year 4 students, the topic of converting and comparing units of length is explored. The lesson begins by introducing the concept of converting different units of length such as millimetres to centimetres, centimetres to metres, and metres to kilometres. The presentation provides essential conversion rates, including that 10 millimetres equal 1 centimetre, 100 centimetres make up 1 metre, and 1000 metres equal 1 kilometre. Students are taught to convert units by either dividing or multiplying to change millimetres to centimetres, centimetres to millimetres, metres to centimetres, and so forth, with clear examples provided for each conversion type.

Additionally, the lesson includes interactive exercises where students can apply their knowledge by converting measurements on subsequent slides, with answers revealed upon interaction. For instance, 30 millimetres is converted into 3 centimetres, and 2 centimetres into 20 millimetres, reinforcing the conversion principles. The lesson also covers comparing lengths by converting different measurements into the same unit, such as comparing the lengths of two snakes by converting millimetres to centimetres to determine which one is longer. The lesson is further complemented by worksheets that offer practice questions for students to convert measurements and compare lengths, ensuring they grasp the concepts of measurement conversion and comparison.