Project Maths
Introduction to Trigonometry
The topic of trigonometric ratios is often covered with loads of rote memorization baked into the activity. This activity set, however, leans more on using similar triangles and discovery learning to help young geometers develop a deeper...
Curated OER
Really Useful List of 100 Irregular Plural Nouns in English
In this irregular plural nouns learning exercise, learners study the list of 100 common irregular plural nouns. Students also add their own examples of irregular plural nouns that are not listed on the chart.