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  2. Jigsaw puzzle - Wikipedia

    en.wikipedia.org/wiki/Jigsaw_puzzle

    A jigsaw puzzle (with context, sometimes just jigsaw or just puzzle) is a tiling puzzle that requires the assembly of often irregularly shaped interlocking and mosaicked pieces. Typically each piece has a portion of a picture, which is completed by solving the puzzle.

  3. List of unsolved problems in biology - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Morphology problem. How are neural tissues formed in specific ways in different species? The formation of neural tissues in a certain way is necessary for the formation of certain goal-directed behavior for certain species.

  4. Puzzle - Wikipedia

    en.wikipedia.org/wiki/Puzzle

    A puzzle is a game, problem, or toy that tests a person's ingenuity or knowledge.In a puzzle, the solver is expected to put pieces together (or take them apart) in a logical way, in order to find the solution of the puzzle.

  5. Word problem (mathematics education) - Wikipedia

    en.wikipedia.org/wiki/Word_problem_(mathematics...

    Word problem from the Līlāvatī (12th century), with its English translation and solution. In science education, a word problem is a mathematical exercise (such as in a textbook, worksheet, or exam) where significant background information on the problem is presented in ordinary language rather than in mathematical notation.

  6. Mathnasium - Wikipedia

    en.wikipedia.org/wiki/Mathnasium

    Mathnasium separates levels of instruction into early education, elementary school, middle school, and high school. Students advance to a new level of study when they demonstrate mastery of the subject through completing mastery checks, where students have to answer a worksheet of problems correctly without help from instructors.

  7. Tree of life (biology) - Wikipedia

    en.wikipedia.org/wiki/Tree_of_life_(biology)

    The tree of life or universal tree of life is a metaphor, conceptual model, and research tool used to explore the evolution of life and describe the relationships between organisms, both living and extinct, as described in a famous passage in Charles Darwin's On the Origin of Species (1859). [1]

  8. Jigsaw (teaching technique) - Wikipedia

    en.wikipedia.org/wiki/Jigsaw_(teaching_technique)

    Students in jigsaw classrooms ("jigsaws") showed a decrease in prejudice and stereotyping, liked in-group and out-group members more, showed higher levels of self-esteem, performed better on standardized exams, liked school more, reduced absenteeism, and mixed with students of other races in areas other than the classroom compared to students in traditional classrooms ("trads").

  9. Reverse jigsaw - Wikipedia

    en.wikipedia.org/wiki/Reverse_jigsaw

    The reverse jigsaw method resembles the original jigsaw method in some way but has its own objectives to be fulfilled. While the jigsaw method focuses on the student's comprehension of the instructor's material, the reverse jigsaw method focuses on the participant's interpretations, perceptions, and judgements through active discussion.