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The worldwide school closures in early 2020 led to losses in learning that will not easily be made up for even if schools quickly return to their prior performance levels. These losses will have lasting economic impacts both on the affected students and on each nation unless they are effectively remediated. While the precise learning losses are not yet known, existing research suggests that the students in grades 1-12 affected by the closures might expect some 3 percent lower income over their entire lifetimes. For nations, the lower long-term growth related to such losses might yield an average of 1.5 percent lower annual GDP for the remainder of the century. These economic losses would grow if schools are unable to re-start quickly. The economic losses will be more deeply felt by disadvantaged students. All indications are that students whose families are less able to support out-of-school learning will face larger learning losses than their more advantaged peers, which in turn will translate into deeper losses of lifetime earnings. The present value of the economic losses to nations reach huge proportions. Just returning schools to where they were in 2019 will not avoid such losses. Only making them better can. While a variety of approaches might be attempted, existing research indicates that close attention to the modified re-opening of schools offers strategies that could ameliorate the losses. Specifically, with the expected increase in video-based instruction, matching the skills of the teaching force to the new range of tasks and activities could quickly move schools to heightened performance. Additionally, because the prior disruptions are likely to increase the variations in learning levels within individual classrooms, pivoting to more individualised instruction could leave all students better off as schools resume. As schools move to re-establish their programmes even as the pandemic continues, it is natural to focus considerable attention on the mechanics and logistics of safe re-opening. But the long-term economic impacts also require serious attention, because the losses already suffered demand more than the best of currently considered re-opening approaches.

This systematic review investigates the relevance of general pedagogical knowledge for successful teaching. It synthesises the empirical evidence of 10 769 teaching professionals and 853 452 students from primary to tertiary education in 21 countries. The meta-analysis of 20 quantitative studies revealed significant effects for teaching quality and student outcomes (Cohen's d = 0.64 and 0.26), indicating that more knowledgeable teachers achieve a three-month additional progress for students. The three themes emerging from 31 qualitative studies underline that general pedagogical knowledge is a crucial resource for teaching. Results also show that teaching requires knowledge about a range of topics, specific skills and other competences to transform knowledge into practice. Teachers need training and practical experience to acquire knowledge, which they apply according to the pedagogical situation at hand. The results allow for important conclusions for policy, practice and research.

Humans are born with the natural ability to gain skills through play. Children learn about social norms, roles and responsibilities, and language through curiosity-driven, playful interactions and activities. Learning through play harnesses the power of children's imagination and inspires active engagement with the material. The Center for Universal Education at Brookings, is studying innovations that strive to improve education. If the education sector stays on its current trajectory, half of all youth around the world entering the workforce in 2030 will lack basic secondary-level skills they need to thrive--from literacy and numeracy to critical thinking and problem solving. It is believed that leapfrogging, or rapid nonlinear progress, is needed to change this trajectory. Education that allows students to leap forward in learning should incorporate experimentation and iteration, helping students make meaning of what they are learning, and engage with others in doing so. These types of student-centered, playful learning experiences are an essential component to leapfrogging in education because without them young people will not be able to develop the full breadth of competencies and skills they need to thrive in a fast-changing world. This paper is the first in in a series of Leapfrogging in Education snapshots that provide analyses of a global catalog of education innovations. Of the nearly 3,000 innovations captured in the catalog, two-thirds involve playful learning, which represents the largest category of innovations that were recorded. [Support also provided by the BHP Foundation.]