Kerry found Tigtag World:

• Moderately improves attainment“students are more engaged with science activities”
• Moderately builds student knowledge“more impact on understanding in our IPC topics”
• Moderately improves teaching efficiency and productivity“it's a one stop shop for great science activities/lessons. No need to go searching”
• Moderately reduces teacher workload“Same as the answer before”
• Slightly saves school money