+DQGVRQ 6FLHQFH 6FLHQFH(GXFDWLRQZLWKDQGIRU6RFLHW\ +6FL,6%1 $Q,%6($SSURDFKIRU7HDFKLQJ WKH&RQFHSWRI'HQVLW\LQ 3UHVFKRRODQG3ULPDU\6FKRRO P Machado, MFM. Costa Universidade do Minho, Portugal [email protected] $EVWUDFW This paper intends to suggest strategies for planning, development and implementation of simple activities, related to “density”, in the classroom, in an Inquiry Based Science Education (IBSE) perspective, i.e. science education based on research/inquiry/experimentation. In this sense, we begin by contextualizing the curricular context on science teaching in preschool and primary school, and presenting the theoretical context related to the teaching of science based in IBSE. The choice of the suggested activities was based on a set of criteria including their inclusion in preschool and primary school national curriculums, as well as the possibility that it can be addressed with varying degrees of depth, depending on the grade and level of cognitive development of students. 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DOORZ WKH GHYHORSPHQWRIFUHDWLYLW\DQGVDWLVIDFWLRQRI FKLOGUHQ VQDWXUDOFXULRVLW\ $FWLYLW\± ([SHULPHQWVRQ%XR \DQF\ 7KLV DFWLYLW\ DLPV WR GHYHORS WKH VWXGHQWV¶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x Which means sink and float? x Can you predict what objects will float? And sink? x The predictions made were different or equal to that was observed? x Describe the characteristics of the objects that sink. Do they have some identical property between them? x Describe the characteristics of the objects that float. Is there some identical property between them? If there are no common characteristics, what do you think has happened? x Is there any surprising result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±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x What are the different or identical characteristics of the different objects? x Why some objects float in water and others do not? What characteristics have these objects? Describe the objects that float and those that sink. x How objects behave according to the predictions made? 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The predictions were different or equal to the observations you made? 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