22 slides. This is chapter 17 in my textbook, but adapt to fit yours.
I teach in an ESE setting, so information in the powerpoint does not go too in depth. This may be used as an introduction to the topics, or as a supplement if you know the content. Either way, lots of visuals to get the attention of ESE students who require them.
Topics include: classifying organisms, mammals, Linnaeus, taxonomy, taxa, binomial nomenclature, kingdom, phylum, class, order, family, genus, species, physical characteristics, molecular clocks, cladogram, molecular evidence, evolutionary tree, mitochondrial DNA, RNA, domains, bacteria, archaea, eukarya