This study aims to produce E-LKPD based on Discovery Learning using the iSpring Suite application on the reaction rate material for grade XI SMA/MA which is valid based on experts and users of E-LKPD. This type of research is Research and Development (R&D) which is based on the 4-D model. This research was conducted at SMAN 4 and SMAN 3 Pekanbaru. The data collection instruments used were valid…