All Tasks
Sequence of squares 1
Determine the numbers of small squares for the given step.
# Numerical expressions
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.
# Terms with variables
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
Score bar
Your learning graph should look something like this by now. The score bar above shows how many of the possible points you have achieved so far. The points from the challenge tasks are displayed separately from those from the main and support tasks, since support tasks shall only compensate for the lost points from main tasks.
Tasks of the type "information station" like this one do not provide any points since no solution is entered.
# Unassigned
Learning
5
Fill in the Blanks: Angle theorems
The image shows two parallel straight lines intersected by a third line. Fill in the blanks below in order to determine the size of angle $\beta$.
# Angles
Training
7
Vector (exact value): Angles
The image shows two pairs of parallel lines intersected by a fifth line. The size of angle $\alpha$ is 45°, $\beta$ is 65°.
Determine the size (as numbers, without °) of the two purple angles and complete the checkboxes below.
# Intercept theorem
Training
7