Smart Charts
NCERT Math-Magic for Class 4, Chapter 14 draws smarter charts from real surveys. Children collect data on transport, food and games, tally frequencies, and present results as bar graphs with labelled scales. They read circle charts showing shares of a whole, compare categories, and answer how-many-more questions from the pictures. Discussing careless scales teaches honesty. It turns scattered classroom answers into evidence, building data habits that science, newspapers and planning all depend upon.
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