# Trigonometry Geo board

948.00

AGE GROUP:

• Suitable for student of above 14 years

INSIDE THE BOX:
Geo board Trigonometry

• Board is drilled by pins and 2 circles at the centres that are labelled in degree.
• Product manual with lesson plan

LEARNING OUTCOME:

• Calculate distances and angles in solids using plane sections and trig ratios
• Be able to sketch graphs of sine, cosine and tangent functions
• Use sine (including the ambiguous case) and cosine rules to solve problems, including simple cases in 3D
• Be able to use ½absinC to calculate the area of a triangle

## Description

CHALLENGES IN UNDERSTANDING TRIGNOMETRY:

It is found that the students find it difficult to develop the concepts of trigonometry and they make some mistakes. However, many errors are committed due to the mechanical application of a rule in trigonometry exercises. The mastery of basic mathematical concept is an essential step in concept development. Most students had an incomplete or fragmented understanding of ways to view the sine and cosine ratio in the triangle and not sure about which side of the triangle to deal with.

WHY TRIGNOMEYTRY GEO BOARD?

Trigonometric board is focus to embrace the visualization of geometric proficiency in learning of trigonometric concept. Board is drilled by pins and 2 circles at the centres that are labelled in degree. With help of connectors and rubber band student can create a shape or right-angled triangle on the board, then by observing its proportional sides between the length of the sides in the triangle and noticing its angle student can discover its formula and ratio of sine, cosine and tangent.