Check out the weblinks below - they are from the Edutopia website (which is American based - but may have something you could use).
Not being a teacher, I am just guessing as to what may be helpful - so I'm hoping that this may be of some use - otherwise check out the Edutopia site for yourself.
https://www.edutopia.org/article/framework-boosting-high-school-students-math-confidence
https://www.edutopia.org/article/3-math-games-you-can-use-class-today
https://www.edutopia.org/article/using-simple-outdoor-science-lessons-inspire-students
https://www.edutopia.org/article/engaging-students-community-based-projects
