THEME “ dimenSional fiGureS around uS ”
Class 2 nd ( age 15-16 ) Teacher Sonata Vaitiekūnė Aim :
- learn better surface area and size formulas of dimensional figures , solving tasks of real content
Objective :
- having revised surface area and size formulas of dimensional figures to solve two tasks of three given ones .
Methods : - practical work , experimental learning , cooperative learning ( group work )
Tools and means : computer , projector , formulas , football ball , basketball ball , regular quadrangular pyramid , regular triangular pyramid , calculator , ruler , pencil , rubber , pen .
Stages of the class :
1 . Presentation of the theme and objectives 2 min . 2 . Performing test 5 min . 3 . Presentation surface area and size of the square rectangle 5 min . 4 . Handing out tasks and discussion on them 5 min . 5 . Working in groups 15 min . 6 . Presentation of the work , analyzing and self-assessing ( assessing under received points ) 10 min . 7 . Giving homework 3 min .
1 . Presentation of the theme and objectives at the beginning of the class . 2 . A student is invited to come to the computer and do the test of 10 questions : ” Which surface of the spatial body do the given figures make ?”
Projector , students read questions , choose an answer and the result is shown at the end of the test ( annex 1 )
3 . Student ( can be a volunteer ) solves the task on the board , which is for revising to calculate the size of rectangular contiguous and answer how many students can study in this classroom .
Tasks : 1 . How much cubic meters of air is in this classroom ( classroom measurements : length , area , height are presented )? 2 . How many students can work in this classroom if 1 student needs 1.7 m 2 area of the floor ?