Teaching Kids

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an article about how to write a book written in 1910 could teach you calculas better than several books of today
Full text http://calculusmadeeasy.org/?fbclid=IwAR3qqg8NcT7Ie8c7HPCmc7SkCdv5IGfBgG98knoF9d4PfqssTBh2ppm2MNc_aem_ARZ0EI9ITIMUrwimcxbSAE-FNnuw55795uxeZmTM-j_rCNWSS3P6VE8Y7wZuVgfCkhU https://www.gutenberg.org/files/33283/33283-pdf.pdf?fbclid=IwAR0HwD4IioKInrP6-7bKtl5lCJroL8Cg8X5d1DFoeHPUFGkFrBA5WCMAjJ8_aem_ARYo8p6Q3aY4Punc_GaiB1VOqaUMXNkFevitQp01iIVTXFj3YfFlgAPsyta4HtH-nf4
two tweets that are on the same page, one has an image of a man
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