. Lessons in nature study. Nature study. HEAT 83 one to express his individual opinion, and to ask his own ques- tions. Do not by your conduct with the class put a premium so much on any kind of answers, even bright ones, as on earnett questions and answers. Give all such, even if apparently ignor- ant and far from right, every con- sideration. Children, like other people, are sensitive in regard to the respect given to their opinions. Nothing with them is so inimical to the independent formation of opinion as to have their opinions treated with disrespect. If one is wrong, prove that he is wr


. Lessons in nature study. Nature study. HEAT 83 one to express his individual opinion, and to ask his own ques- tions. Do not by your conduct with the class put a premium so much on any kind of answers, even bright ones, as on earnett questions and answers. Give all such, even if apparently ignor- ant and far from right, every con- sideration. Children, like other people, are sensitive in regard to the respect given to their opinions. Nothing with them is so inimical to the independent formation of opinion as to have their opinions treated with disrespect. If one is wrong, prove that he is wrong, but neither ridicule him nor ride over him. Avoid allowing a few to lead the class and set opinions for the rest. Heat Ex- pands Air— Use the flask and tube of the experi- ment of heat expanding water. Have the flask clean and dry. Place the end of the tube under water. Warm. i*lg. &4. iixpaasion of air by Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Jenkins, Oliver Peebles; Kellogg, Vernon L. (Vernon Lyman), 1867-1937. joint author. San Francisco, The Whitaker & Ray Company


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