Foam fire extinguisher (hints for printing)
The five hints and answers for the worksheet of the same name prepared for printing. The last hint presents the complete solution.
Information and ideas:
The students who did not use the hints to solve the task should also read the last hint with the complete solution to compare their results.
The hints have been designed so that they can be printed double-sided and folded. Additional information on how the hints are used is compiled in the teaching methods named “Tasks with incremental hints – an introduction” that are available on the media portal.