Knowing the Ma'sumin: Imam Musa al-Kazim (a) is part of the series of workbooks on the Ma'sumin (a). The workbook activities are designed to teach children ages 8-12 years the bigraphical details about the Seventh Imam in the Progeny of Holy Prophets Muhammad (s), the great teachings of Imam al-Kazim, examples from his illustrious life, his companions and the political challenges he faced.