This product is great for teaching -er verb conjugation! It includes a fool-proof interactive explanation with a worksheet and power point, a power point with the -er verb jingle (invaluable!), and a whiteboard practice power point. Whiteboard power point: the first slide has a phrase and picture of a subject doing an activity with the stem of the verb in black and the ending in red; students write the STEM on their whiteboards; next slide has a different subject or subjects doing the same activity; students write the correct ending that agrees with the new subject(s) before answer appears. Students will know very clearly how to conjugate -er verbs once they have worked with this material!