Grammar Catechisms: Philosophical, Theological, and Historical Foundations is the first publication of The Logos Curriculum. The three catechisms constitute a grammatical formulation of learning to be committed to memory from Kindergarten through 4th grade. It can also serve anyone seeking to learn the grammar of the three foundations at any age. The included Core of History and Timeline will be further developed in A Critical Commentary of World History-included in the curriculum for the dialectic (5-8 grades) and rhetoric (9-12 grades) levels of learning. In addition, grammar-level clusters of bible verses and Psalms for singing are given for memorization.