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This is a series of demonstrations about different electrical and magnetic phenomena.

In this math lesson, learners participate in several activities where they apply measurement skills.

In this activity (page 10 of the PDF) learners will explore the historical progression of siege weapons to gain an understanding of how the addition and modification of parts can change the efficiency

In this activity, learners explore the potential of interchangeable standard parts to create a large number of unique creations in different combinations.