Many evolutionists and atheists will try and argue that micro and macro evolution are the same.  Some have even said that Creation Scientists made up these terms!  However, they are two, different terms that describe two, different things.

Microevolution refers to evolution at or below the species level.  It generally involves speciation (or mutation).  Nearly all mutations are harmful and lethal.

Macroevolution refers to evolution above the species level.  We surely haven't seen evolution from fish to amphibians or reptiles to birds.  However, we have seen the primrose plant produce a slightly different species of primrose plant.  This is obviously something God has designed and allowed.

If you'd like to read about micro and macro evolution, please visit the links below!  Many of them are from Christian sources, but I've included a few from evolutionary sites, so we can see what they are saying.  God bless!

Christian Sites

Micro vs. Macro Evolution - Summarizes these terms and the surrounding debate

What is Micro and Macro Evolution?

The Difference Between Micro and Macro Evolution

What is the Theory of Evolution?

What is Evolution? - Common Descent

The Microwave of Evolution

Non-Christian Sites

Synthetic Theory of Evolution: Micro and Macro - There are some charts and some info from their side

Principles of Evolution: Micro and Macro

Macroevolution

Understanding the Basics: What are microevolution and macroevolution?