Selecting Text Subjects Skip to main content Your browser is not supported.This website may not work as expected. Please use the latest version of Chrome, Firefox, Safari, or Edge. <! TeacherTube - Elementary, Middle, High Drag/Slide Object Google Chrome Calc SS3 - Elementary, Middle, High Dragging and Dropping Interactive angles - Middle/High This activity allows manipulation and investigation of various types of angles. It can be used at a variety of different grade levels. At its most basic for teaching about types of angles, acute, obtuse or reflex. For more advanced use to create angle problems in which the missing letter angle values have to be found. The controls The mode control is used to it selects the type of angle problem. In all the modes individual angles can be shown or hidden for example click the angle (a). The handles at the end of each line can be clicked and dragged to change the angle. Mode 'one' Identifying angle types. The initial mode is unique in that there is only one angle. Complementary Angles mode In this mode a complementary angle is shown, complementary angles add up to 90° Initially the 90° is split by just one line but this can be changed by selecting a different number of lines. Supplementary Angles mode Supplementary angles are angles that add up to 180°. Angles at a point mode Angles Glossary
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Videos for learning and fun. Watch here or download for later. Plays on all devices. by nda_librarian May 8