Judith found Tigtag World:

• Moderately improves attainment“Improvement on scaled scores”
• Significantly builds student knowledge“Students' proper and correct articulation of scientific concepts.”
• Significantly improves teaching efficiency and productivity“Ease of planning and location of effective resources”
• Significantly reduces teacher workload“All resources are located in one place rather than look for resources all over the internet.”
• Slightly saves school money“Purchase of resources such as copies of text books and photocopying of worksheets.”