Problem based learning  is a key part of 21 CLD and requires Critical Thinking, Collaboration, Communication, Creativity. 

Rubics can be  very helpful as an aide  for peer or self assessment:   https://www.bie.org/objects/cat/rubrics/P15

For teachers:

• How to use the rubics   https://www.bie.org/blog/how_to_use_the_4cs_rubrics
• Rubic for creating  Rubics  https://www.bie.org/object/document/rubric_for_rubrics
• Project design Rubic  https://www.bie.org/object/document/project_design_rubric

For secondary pupils:

• Project Based Teaching Rubic  https://www.bie.org/object/document/project_based_teaching_rubric
• Creativity and Innovation Rubic  https://www.bie.org/object/document/6_12_creativity_innovation_rubric_non_ccss
• Presentation Rubic  http://www.bie.org/object/document/9_12_presentation_rubric_ccss_aligned
• Collaboration Rubic  https://www.bie.org/object/document/6_12_collaboration_rubric_non_ccss
• Critical Thinking Rubic  https://www.bie.org/object/document/6_12_critical_thinking_rubric_non_ccss

For primary pupils:

• Presentation Rubic  https://www.bie.org/object/document/k_2_presentation_rubric
• Teamwork Rubic  https://www.bie.org/object/document/k_2_teamwork_rubric
• Critical Thinking Rubic  https://www.bie.org/object/document/k_2_critical_thinking_rubric