This document provides a quick guide to assessing English language learners from pre-kindergarten through 12th grade. It defines key terms related to assessment and outlines various types of assessments, including federally mandated assessments, district-level assessments, and instructional assessments. Examples are given for assessment tools that can be used for placement, progress monitoring, evaluating English proficiency and academic achievement. Guidelines are also provided for standards-based classroom assessment of the four language domains: speaking, listening, reading and writing.