All Tasks

Angles of triangles

In this isosceles triangle, the angles at the base are twice the angle b at the apex. Choose a suitable equation that you can use to calculate the angle b.
 
# Unassigned

Training
7

Perimeter kite

In a kite-rectangle, one side is three times as long as the other x. Cross all terms that can be used to determine the perimeter of the figure.
 
# Unassigned

Modeling
7

Sequence of triangles 1

Determine the numbers of small trinagles for the given step.
 
# Quadratic functions

Modeling
7

Sequence of squares 1

Determine the numbers of small squares for the given step.
 
# Unassigned

Modeling
8

perimeter trapzoid

In a symmetrical trapezoid, the two parallel sides a and c together are twice as long as the sum of the other two sides. Cross a term that can be used to determine the perimeter of the figure.
 
# Unassigned

Modeling
7

Example challenge task

There are some important conceptual differences between support and challenge tasks. Maybe you can guess what these are? Below, take a chance at selecting all the correct answers.
 
# Numbers & operations

Learning
7