Learning Resources STEM – Robot Mouse. Specifically designed to engage children in science, technology, engineering and maths, primary learners can get hands-on with STEM learning with this colourful early coding set! Young learners can explore early coding and programming concepts with “Jack” the robot mouse. Children program the mouse to perform a sequence of steps. Engaging set includes 30 double-sided coding cards. Jack mouse measures 10cm L. Requires 3 AAA batteries (not included). Suitable for ages 5+.